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Catalytic aerobic desulfurization of fuels in the presence of nanosized mixed carbide FeWCстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Akopyan Argam V., Eseva Ekaterina A., Mnatsakanyan Raman A., Davtyan David A., Lukashov Maxim O., Levin Ivan S., Sadovnikov Alexey A., Anisimov Alexander V., Terzyan Anna M., Agoyan Artur M., Karakhanov Eduard
- Журнал: Chemical Engineering Journal
- Том: 464
- Год издания: 2023
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 142641
- DOI: 10.1016/j.cej.2023.142641
- Аннотация: Nanosized mixed tungsten-iron carbide (FeWC) was successfully applied in aerobic oxidative desulfurization. The combination of catalytically active centers responsible for the activation of oxygen and the oxidation of sulfur-containing compounds made it possible to obtain a highly efficient catalyst. The catalyst was synthesized by microwave irradiation, allowing to obtain a nanoscale catalyst in just 15 min. The catalyst was characterized in detail by a variety of methods: XRD, HRTEM, EDX, SEM, XPS, and low-temperature nitrogen adsorption/desorption. The key factors influencing the dibenzothiophene (DBT) oxidation were investigated. Under optimized conditions DBT conversion was 100% in 1 h at 130 °C, 6 atm. The possible mechanisms including oxygen activation, alkyl peroxide formation, and substrate oxidation by tungsten peroxo-complexes were discussed. The catalyst retains its activity for at least 5 cycles of oxidation-regeneration. Aerobic oxidative desulfurization of straight-run gasoline in the presence of FeWC was performed and sulfur content was reduced from 995 to 6 ppm.
- Добавил в систему: Есева Екатерина Андреевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | 1-s2.0-S1385894723013724-main.pdf | 1-s2.0-S1385894723013724-main.pdf | 8,5 МБ | 31 марта 2023 [EsevaEkaterina] | |
| 2. | ekspertnoe_zaklyuchenie.pdf | ekspertnoe_zaklyuchenie.pdf | 312,5 КБ | 23 августа 2023 [EsevaEkaterina] |